/* ==========================================================================
   ShopCrew Documentation & Changelog Stylesheet (docs.css)
   ========================================================================== */

.docs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  padding: 48px 0 96px;
  align-items: start;
}

/* Sidebar Navigation */
.docs-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  max-height: calc(100vh - var(--header-height) - 48px);
  overflow-y: auto;
  padding-right: 16px;
}

.docs-nav-group {
  margin-bottom: 28px;
}

.docs-nav-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding-left: 12px;
}

.docs-nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.docs-nav-item a {
  display: block;
  padding: 8px 12px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
}

.docs-nav-item a:hover {
  background: var(--bg-subtle);
  color: var(--primary);
}

.docs-nav-item.active a {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  border-left-color: var(--primary);
}

/* Main Content Area */
.docs-content {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 48px 56px;
  box-shadow: var(--shadow-sm);
  min-width: 0;
}

.docs-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.docs-breadcrumb a:hover {
  color: var(--primary);
}

.docs-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.docs-lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.docs-section {
  margin-bottom: 48px;
}

.docs-section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 36px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid #F1F5F9;
}

.docs-section h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 24px;
  margin-bottom: 12px;
}

.docs-section p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.docs-section ul, .docs-section ol {
  margin-bottom: 20px;
  padding-left: 24px;
  color: var(--text-secondary);
}

.docs-section li {
  margin-bottom: 8px;
  line-height: 1.6;
}

/* Callout Alerts */
.docs-alert {
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin: 24px 0;
  display: flex;
  gap: 16px;
  border: 1px solid transparent;
}

.alert-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.alert-content {
  font-size: 0.9rem;
  line-height: 1.6;
}

.alert-content strong {
  display: block;
  margin-bottom: 4px;
}

.alert-note {
  background: #F0F9FF;
  border-color: #BAE6FD;
  color: #0369A1;
}

.alert-tip {
  background: var(--success-bg);
  border-color: #A7F3D0;
  color: #065F46;
}

.alert-warning {
  background: var(--warning-bg);
  border-color: #FDE68A;
  color: #92400E;
}

/* Code Snippets */
.code-block {
  background: #0F172A;
  border-radius: var(--radius-md);
  margin: 20px 0;
  overflow: hidden;
  border: 1px solid #334155;
}

.code-header {
  background: #1E293B;
  padding: 8px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: #94A3B8;
  font-family: var(--font-mono);
}

.code-copy-btn {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #CBD5E1;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.code-copy-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
}

.code-block pre {
  padding: 16px 20px;
  color: #E2E8F0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  overflow-x: auto;
  line-height: 1.5;
}

/* Timeline (Changelog) */
.timeline {
  position: relative;
  padding-left: 32px;
  margin-top: 32px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border-subtle);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-dot {
  position: absolute;
  left: -32px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 3px solid var(--primary);
}

.timeline-version-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.version-tag {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.version-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.version-date {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.version-list {
  background: #F8FAFC;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.version-list li {
  margin-bottom: 6px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Responsive Docs */
@media (max-width: 992px) {
  .docs-layout {
    grid-template-columns: 1fr;
  }
  .docs-sidebar {
    display: none;
  }
  .docs-content {
    padding: 32px 24px;
  }
}